The two sets of supporters have taken opposite stances in the wake of Reds striker Luis Suarez's eight-match suspension after being found guilty of racially abusing United's Patrice Evra when the two sides met at Anfield in October.

That incident stoked the simmering feud which exists between groups of rival fans and, with the case being played out in the full glare of the media - many of whom criticised Liverpool for their defence of Suarez - the issue has rarely been out of the headlines in three months.

The Uruguay international still has two matches of his ban to serve so will not be on the pitch tomorrow - although he is likely to be in the directors' box - but it is anticipated Evra will play.

But Dalglish insisted the focus had to be on football and everyone involved, from the pitch to the stands, had to behave.

"We want to concentrate on going out and playing football and any other sideshow is purely that, it is just a sideshow,'' the Scot said.

"Everyone has a responsibility to uphold the names of their respective club and anyone who reports or comments on the game also has the responsibility to make sure they are not trying to incite trouble.

"But it is not only the fans who have to behave themselves; we have a responsibility to behave - but that is the case every time.

"I am sure everyone will be determined to make sure what's done has been done and whatever your grievance is keep it to yourself and let's get on with the game.''

Much has been done to lessen the potential for problems at Anfield.

United boss Sir Alex Ferguson sent a letter to ticket holders appealing for them to work with the stewards in the stadium after previous encounters had led to their allocation being cut because of persistent standing in gangways.

Liverpool managing director Ian Ayre and captain Steven Gerrard have both stressed the focus has to be on football and Merseyside Police earlier this week issued their own guidance, insisting they would be: "Firm, fair and friendly but take action where necessary against those individuals who may seek to cause problems or misbehave.''

Midfielder Jay Spearing could be recalled to Liverpool's squad after missing three matches with a hamstring injury.